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Nimfa-mama [501]
3 years ago
11

PLEASE HELP ASAP!! I WILL BE AWARDING BRAINLIEST!!

Mathematics
1 answer:
dolphi86 [110]3 years ago
5 0
The answer here would be -3
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The principal of a middle school claims that test scores of the seventh-graders at his school vary less than the test scores of
AveGali [126]

Answer:

There is sufficient evidence to support the claim that the standard deviation is less than 14.7.

Step-by-step explanation:

From the question we are told that that the null hypothesis is

       H_o  :  \sigma < 14.7

Now given from the question that this null hypothesis was rejected, it mean, in non technical term that there is sufficient evidence to support the claim that the standard deviation is less than 14.7.

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Answer:

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Step-by-step explanation:

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You ran 800 meters in 5 minutes what your average speed
larisa [96]

Answer:

160 metres per minute

Step-by-step explanation:

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A shoe store is offering a 25% discount on all pairs of shoes in the store. Every store employee gets an addtional 15% off the a
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The amount an employee has to pay for a pair of shoes, is $56, but there is no $56 option, so the only other answer it could be is C. $57
3 0
3 years ago
if a lake has high alkalinity, what is closest to the probability that the lake also has a shallow depth?
never [62]

Answer:

0.22

Step-by-step explanation:

Probability distribution is the function which describes the likelihood of possible values assuming a random variable. The alkalinity of lake is determined by dividing the high shallow depthness by the total of lake alkalinity. The shallow depth is 209 and the total alkalinity of the lake is 966. By dividing the depthness with alkalinity we get 0.22.

209/966 = 0.219

approximately 0.22

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3 years ago
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